Finding the Third Proportional to 445 and 533
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Solution
The third proportional to 445 and 533 is: 638.40
Step by Step Solution
- Step 1: Write the proportion equation
445 : 533 = 533 : x - Step 2: Convert to fraction form
445/533 = 533/x - Step 3: Cross multiply
445x = 533 × 533 - Step 4: Simplify right side
445x = 284,089 - Step 5: Solve for x
x = 284,089/445 - Step 6: Final answer
x = 638.40
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Why These Related Problems?
These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.